Vascular adaptation of the internal thoracic artery graft early and late after bypass surgery

The Journal of Thoracic and Cardiovascular Surgery
Beat H WalpothOtto M Hess

Abstract

Flow mismatch between the supplying artery and the myocardial perfusion region has been observed in patients with internal thoracic artery grafts. Thus coronary flow changes of arterial (internal thoracic artery grafts) and saphenous (saphenous vein grafts) bypass grafts were studied early and late after coronary artery bypass grafting. Thirty patients undergoing elective bypass surgery (internal thoracic artery and saphenous vein grafts) were studied intraoperatively and (17 patients) 3 to 10 months postoperatively. Coronary flow was measured intraoperatively with the transit-time Doppler scanning technique. Postoperatively, flow velocity and coronary flow reserve were determined with the Doppler flow wire technique. Quantitative angiographic analysis was used to determine vessel size for calculation of absolute flow. Intraoperatively, internal thoracic artery graft flow was significantly lower than saphenous vein graft flow (31 +/- 8 vs 58 +/- 29 mL/min, P < .01). Postoperatively, internal thoracic artery graft flow increased significantly to 42 +/- 24 mL/min at 3 months and to 56 +/- 30 mL/min (P < .02 vs intraoperative value) at 10 months, respectively. However, saphenous vein graft flow remained unchanged over time (58 +/-...Continue Reading

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Citations

Jan 6, 2012·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Hiroyuki NakajimaSoichiro Kitamura
Mar 19, 2011·Circulation Journal : Official Journal of the Japanese Circulation Society·Soichiro Kitamura
May 7, 2010·The Heart Surgery Forum·Rafet GunayMahmut Murat Demirtas
Sep 28, 2014·The Journal of Thoracic and Cardiovascular Surgery·Paul A Kurlansky
Aug 13, 2011·Journal of Cardiothoracic and Vascular Anesthesia·Ismihan Selen OnanIlhan Sanisoglu
Mar 4, 2014·The Journal of Surgical Research·Daniel Y LuAlan Dardik
May 24, 2015·The Annals of Thoracic Surgery·Damien J LaParUNKNOWN Investigators for the Virginia Cardiac Surgery Quality Initiative
Jan 24, 2015·International Journal of Surgery·Piroze M Davierwala, Friedrich W Mohr
Mar 4, 2014·Asian Cardiovascular & Thoracic Annals·Lokeswara Rao Sajja, Gopichand Mannam
Nov 16, 2019·Journal of Cardiac Surgery·Manuela SilvaMario Gaudino
Jan 28, 2020·The Journal of Cardiovascular Surgery·Lars NiclaussJuerg Schwitter
Apr 21, 2020·Coronary Artery Disease·Amer HarkyQiu Ginj Kong
Jan 21, 2021·Innovations : Technology and Techniques in Cardiothoracic and Vascular Surgery·Hossein AmirjamshidiSunil M Prasad

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